NEW METHODS AND APPARATUS FOR AUTHENTICATION OF DOCUMENTS BY USING THE INTENSITY PROFILE OF MOIRE PATTERNS - Patent 1238373

(19)

(11)

EP 1 238 373 A1

(12)

(43)	Date of publication:
	11.09.2002 Bulletin 2002/37

(21)	Application number: 99974223.2

(22)	Date of filing: 29.11.1999

(51)	International Patent Classification (IPC)⁷: G07D 7/12

(86)	International application number:
	PCT/IB9901/895

(87)	International publication number:
	WO 0103/9138 (31.05.2001 Gazette 2001/22)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(71)	Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
	1015 Lausanne (CH)

(72)	Inventors:
	AMIDROR, Isaac CH-1003 Lausanne (CH) HERSCH, Roger, D. CH-1066 Epalinges (CH)

(74)	Representative: LOUIS, PÖHLAU, LOHRENTZ & SEGETH
	Postfach 3055 90014 Nürnberg 90014 Nürnberg (DE)

(54)	NEW METHODS AND APPARATUS FOR AUTHENTICATION OF DOCUMENTS BY USING THE INTENSITY PROFILE OF MOIRE PATTERNS